Final answer:
The ground surface around a building's perimeter should have a minimum slope of 6 inches within the first 10 feet. This helps to ensure proper drainage which is critical to preventing water damage to a building's foundation.
Step-by-step explanation:
The question refers to the recommended slope for the ground surface surrounding a building to ensure proper drainage away from the structure. In general construction practices, the ground surface around a building's perimeter should slope a minimum of 6 inches within the first 10 feet.
This is crucial to prevent water from pooling against the building's foundation, which could lead to moisture problems and structural damage over time.
The slope ensures that water is directed away from the building.
To demonstrate an understanding of scale ratios as might be seen in architectural drawings, if a ratio given was 1/2 inch equals 5 feet (inches/feet = 0.5/5), we convert both numbers to a consistent unit (inches to feet or vice versa) before writing the ratio.
If we are comparing scale distances to actual distances, we need to ensure that these units are consistent to maintain the accuracy of our calculations and representations on drawings.
For example, such ratios can be applied to the length and width of a building, or other features like a backyard, to accurately represent their dimensions on a scaled drawing.